For part A, you simply add the two functions a(x) and b(x). The resulting function is then (a+b)(x) = 5x +2.

For part B, you multiply the functions a(x) and b(x). Using the FOIL method, we obtain, 6x^2 -24x + 20x - 80. Simplifying, we get, (a*b)(x) = 6x^2 -4x - 80.

For part C, you replace x in the function a(x) with the expression from b(x). This results to: a[b(x)] = 3(2x - 8) +10. Simplifying, a[b(x)] = 6x - 14.

7 0

3 years ago

For the triangles above, what is the measure of

prohojiy [21]

Answer:

Step-by-step explanation

48 + k+l =180

48 +90+l =180

138 +l = 180

l=180 - 138

l = 42

now

l+m+n= 180

42 +m+66 =180

108+m= 180

m= 180 -108 m =72

Mark brainlest

8 0

2 years ago

The ratio of the area between a small square of land and a large squareof land is 3: 7. Given that the total area of the two squ

lakkis [162]

Given:

The ratio of the area between a small square of land and a large square

of land is 3: 7.

Total area of the two squares of land (in sq. meter) is 4000.

Required:

The area of each square of land.

Answer:

We have the ratio of the area between a small square of land and a large square of land is 3: 7.

Let

$x^$

be the area of the square of land.

Then their ratio is given by,

$3x^:7x^$

Also given that the total area of the two squares of land (in sq.meter) is

4,000.

The area of

Therefore,

$\begin{gathered} 3x^+7x^=4000 \\ \Rightarrow10x^=4000 \\ \Rightarrow x^=400 \\ \end{gathered}$

Therefore,the area of small square (in sq. meter) is,

$3x=3(400)=1200$

and the area of large square (in sq. meter) is,

$7x=7(400)=2800$

Final Answer:

The area of small and large square respectively (in sq. meter) is,1200 and 2800.

7 0

1 year ago

Calcule el cociente de los siguientes ejercicios(-8)/(+2)​

Calcule el cociente de los siguientes ejercicios(-8)/(+2)